The United Nations Buffer Zone in Cyprus is a demilitarized zone, patrolled by the United Nations Peacekeeping Force in Cyprus (UNFICYP), that was established in 1964 and extended in 1974 after the ceasefire of 16 August 1974, following the Turkish invasion of Cyprus, and the de facto partition of the island into the area controlled by the Republic of Cyprus (excluding the British Sovereign Base Areas) and the largely unrecognized Turkish Republic of Northern Cyprus in the north. The zone, also known as the Green Line (Greek: Πράσινη Γραμμή, Prasini Grammi; Turkish: Yeşil Hat), stretches for 180 kilometres (112 miles) from Paralimni in the east to Kato Pyrgos in the west, where a separate section surrounds Kokkina.